Generalized Browder's and Weyl's Theorems for Generalized Derivations

Enrico Boasso, Mohamed Amouch

Given Banach spaces $\X$ and $\Y$ and Banach space operators $A\in L(\X)$ and $B\in L(\Y)$, let $ρ\colon L(\Y,\X)\to L(\Y,\X)$ denote the generalized derivation defined by $A$ and…